The effects of three-dimensional defects on one-way surface plasmon propagation for photonic topological insulators comprised of continuum media

  title={The effects of three-dimensional defects on one-way surface plasmon propagation for photonic topological insulators comprised of continuum media},
  author={Seyyed Ali Hassani Gangaraj and Andrei Nemilentsau and George W. Hanson},
  journal={Scientific Reports},
We have investigated one-way surface plasmon-polaritons (SPPs) at the interface of a continuum magnetoplasma material and metal, in the presence of three-dimensional surface defects. Bulk electromagnetic modes of continuum materials have Chern numbers, analogous to those of photonic crystals. This can lead to the appearance of topologically-protected surface modes at material interfaces, propagating at frequencies inside the bandgap of the bulk materials. Previous studies considered two… 

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